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blender/source/blender/blenkernel/intern/brush.c

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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/** \file
* \ingroup bke
*/
#include "MEM_guardedalloc.h"
#include "DNA_brush_types.h"
#include "DNA_defaults.h"
#include "DNA_gpencil_types.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "BLI_listbase.h"
#include "BLI_math.h"
#include "BLI_rand.h"
#include "BLT_translation.h"
#include "BKE_brush.h"
#include "BKE_colortools.h"
#include "BKE_context.h"
#include "BKE_icons.h"
#include "BKE_idtype.h"
#include "BKE_lib_id.h"
#include "BKE_lib_query.h"
#include "BKE_lib_remap.h"
#include "BKE_main.h"
#include "BKE_material.h"
#include "BKE_paint.h"
#include "BKE_texture.h"
#include "IMB_colormanagement.h"
#include "IMB_imbuf.h"
#include "IMB_imbuf_types.h"
#include "RE_render_ext.h" /* RE_texture_evaluate */
static void brush_init_data(ID *id)
{
Brush *brush = (Brush *)id;
BLI_assert(MEMCMP_STRUCT_AFTER_IS_ZERO(brush, id));
MEMCPY_STRUCT_AFTER(brush, DNA_struct_default_get(Brush), id);
/* enable fake user by default */
id_fake_user_set(&brush->id);
/* the default alpha falloff curve */
BKE_brush_curve_preset(brush, CURVE_PRESET_SMOOTH);
}
static void brush_copy_data(Main *UNUSED(bmain), ID *id_dst, const ID *id_src, const int flag)
{
Brush *brush_dst = (Brush *)id_dst;
const Brush *brush_src = (const Brush *)id_src;
if (brush_src->icon_imbuf) {
brush_dst->icon_imbuf = IMB_dupImBuf(brush_src->icon_imbuf);
}
if ((flag & LIB_ID_COPY_NO_PREVIEW) == 0) {
BKE_previewimg_id_copy(&brush_dst->id, &brush_src->id);
}
else {
brush_dst->preview = NULL;
}
brush_dst->curve = BKE_curvemapping_copy(brush_src->curve);
if (brush_src->gpencil_settings != NULL) {
brush_dst->gpencil_settings = MEM_dupallocN(brush_src->gpencil_settings);
brush_dst->gpencil_settings->curve_sensitivity = BKE_curvemapping_copy(
brush_src->gpencil_settings->curve_sensitivity);
brush_dst->gpencil_settings->curve_strength = BKE_curvemapping_copy(
brush_src->gpencil_settings->curve_strength);
brush_dst->gpencil_settings->curve_jitter = BKE_curvemapping_copy(
brush_src->gpencil_settings->curve_jitter);
brush_dst->gpencil_settings->curve_rand_pressure = BKE_curvemapping_copy(
brush_src->gpencil_settings->curve_rand_pressure);
brush_dst->gpencil_settings->curve_rand_strength = BKE_curvemapping_copy(
brush_src->gpencil_settings->curve_rand_strength);
brush_dst->gpencil_settings->curve_rand_uv = BKE_curvemapping_copy(
brush_src->gpencil_settings->curve_rand_uv);
brush_dst->gpencil_settings->curve_rand_hue = BKE_curvemapping_copy(
brush_src->gpencil_settings->curve_rand_hue);
brush_dst->gpencil_settings->curve_rand_saturation = BKE_curvemapping_copy(
brush_src->gpencil_settings->curve_rand_saturation);
brush_dst->gpencil_settings->curve_rand_value = BKE_curvemapping_copy(
brush_src->gpencil_settings->curve_rand_value);
}
/* enable fake user by default */
id_fake_user_set(&brush_dst->id);
}
static void brush_free_data(ID *id)
{
Brush *brush = (Brush *)id;
if (brush->icon_imbuf) {
IMB_freeImBuf(brush->icon_imbuf);
}
BKE_curvemapping_free(brush->curve);
if (brush->gpencil_settings != NULL) {
BKE_curvemapping_free(brush->gpencil_settings->curve_sensitivity);
BKE_curvemapping_free(brush->gpencil_settings->curve_strength);
BKE_curvemapping_free(brush->gpencil_settings->curve_jitter);
BKE_curvemapping_free(brush->gpencil_settings->curve_rand_pressure);
BKE_curvemapping_free(brush->gpencil_settings->curve_rand_strength);
BKE_curvemapping_free(brush->gpencil_settings->curve_rand_uv);
BKE_curvemapping_free(brush->gpencil_settings->curve_rand_hue);
BKE_curvemapping_free(brush->gpencil_settings->curve_rand_saturation);
BKE_curvemapping_free(brush->gpencil_settings->curve_rand_value);
MEM_SAFE_FREE(brush->gpencil_settings);
}
MEM_SAFE_FREE(brush->gradient);
BKE_previewimg_free(&(brush->preview));
}
static void brush_make_local(Main *bmain, ID *id, const int flags)
{
Brush *brush = (Brush *)id;
const bool lib_local = (flags & LIB_ID_MAKELOCAL_FULL_LIBRARY) != 0;
bool is_local = false, is_lib = false;
/* - only lib users: do nothing (unless force_local is set)
* - only local users: set flag
* - mixed: make copy
*/
if (!ID_IS_LINKED(brush)) {
return;
}
if (brush->clone.image) {
/* Special case: ima always local immediately. Clone image should only have one user anyway. */
BKE_lib_id_make_local(bmain, &brush->clone.image->id, false, 0);
}
BKE_library_ID_test_usages(bmain, brush, &is_local, &is_lib);
if (lib_local || is_local) {
if (!is_lib) {
BKE_lib_id_clear_library_data(bmain, &brush->id);
BKE_lib_id_expand_local(bmain, &brush->id);
/* enable fake user by default */
id_fake_user_set(&brush->id);
}
else {
Brush *brush_new = BKE_brush_copy(bmain, brush); /* Ensures FAKE_USER is set */
brush_new->id.us = 0;
/* setting newid is mandatory for complex make_lib_local logic... */
ID_NEW_SET(brush, brush_new);
if (!lib_local) {
BKE_libblock_remap(bmain, brush, brush_new, ID_REMAP_SKIP_INDIRECT_USAGE);
}
}
}
}
static void brush_foreach_id(ID *id, LibraryForeachIDData *data)
{
Brush *brush = (Brush *)id;
BKE_LIB_FOREACHID_PROCESS(data, brush->toggle_brush, IDWALK_CB_NOP);
BKE_LIB_FOREACHID_PROCESS(data, brush->clone.image, IDWALK_CB_NOP);
BKE_LIB_FOREACHID_PROCESS(data, brush->paint_curve, IDWALK_CB_USER);
if (brush->gpencil_settings) {
BKE_LIB_FOREACHID_PROCESS(data, brush->gpencil_settings->material, IDWALK_CB_USER);
}
BKE_texture_mtex_foreach_id(data, &brush->mtex);
BKE_texture_mtex_foreach_id(data, &brush->mask_mtex);
}
IDTypeInfo IDType_ID_BR = {
.id_code = ID_BR,
.id_filter = FILTER_ID_BR,
.main_listbase_index = INDEX_ID_BR,
.struct_size = sizeof(Brush),
.name = "Brush",
.name_plural = "brushes",
.translation_context = BLT_I18NCONTEXT_ID_BRUSH,
.flags = 0,
.init_data = brush_init_data,
.copy_data = brush_copy_data,
.free_data = brush_free_data,
.make_local = brush_make_local,
.foreach_id = brush_foreach_id,
};
static RNG *brush_rng;
void BKE_brush_system_init(void)
{
brush_rng = BLI_rng_new(0);
BLI_rng_srandom(brush_rng, 31415682);
}
void BKE_brush_system_exit(void)
{
if (brush_rng == NULL) {
return;
}
BLI_rng_free(brush_rng);
brush_rng = NULL;
}
static void brush_defaults(Brush *brush)
{
const Brush *brush_def = DNA_struct_default_get(Brush);
#define FROM_DEFAULT(member) memcpy(&brush->member, &brush_def->member, sizeof(brush->member))
#define FROM_DEFAULT_PTR(member) memcpy(brush->member, brush_def->member, sizeof(brush->member))
FROM_DEFAULT(blend);
FROM_DEFAULT(flag);
FROM_DEFAULT(weight);
FROM_DEFAULT(size);
FROM_DEFAULT(alpha);
FROM_DEFAULT(hardness);
FROM_DEFAULT(autosmooth_factor);
FROM_DEFAULT(topology_rake_factor);
FROM_DEFAULT(crease_pinch_factor);
FROM_DEFAULT(normal_radius_factor);
FROM_DEFAULT(area_radius_factor);
FROM_DEFAULT(disconnected_distance_max);
FROM_DEFAULT(sculpt_plane);
FROM_DEFAULT(plane_offset);
FROM_DEFAULT(clone.alpha);
FROM_DEFAULT(normal_weight);
FROM_DEFAULT(fill_threshold);
FROM_DEFAULT(flag);
FROM_DEFAULT(sampling_flag);
FROM_DEFAULT_PTR(rgb);
FROM_DEFAULT_PTR(secondary_rgb);
FROM_DEFAULT(spacing);
FROM_DEFAULT(smooth_stroke_radius);
FROM_DEFAULT(smooth_stroke_factor);
FROM_DEFAULT(rate);
FROM_DEFAULT(jitter);
FROM_DEFAULT(texture_sample_bias);
FROM_DEFAULT(texture_overlay_alpha);
FROM_DEFAULT(mask_overlay_alpha);
FROM_DEFAULT(cursor_overlay_alpha);
FROM_DEFAULT(overlay_flags);
FROM_DEFAULT_PTR(add_col);
FROM_DEFAULT_PTR(sub_col);
FROM_DEFAULT(stencil_pos);
FROM_DEFAULT(stencil_dimension);
FROM_DEFAULT(mtex);
FROM_DEFAULT(mask_mtex);
#undef FROM_DEFAULT
#undef FROM_DEFAULT_PTR
}
/* Datablock add/copy/free/make_local */
/**
* \note Resulting brush will have two users: one as a fake user,
* another is assumed to be used by the caller.
*/
Brush *BKE_brush_add(Main *bmain, const char *name, const eObjectMode ob_mode)
{
Brush *brush;
brush = BKE_libblock_alloc(bmain, ID_BR, name, 0);
brush_init_data(&brush->id);
brush->ob_mode = ob_mode;
return brush;
}
/* add grease pencil settings */
void BKE_brush_init_gpencil_settings(Brush *brush)
{
if (brush->gpencil_settings == NULL) {
brush->gpencil_settings = MEM_callocN(sizeof(BrushGpencilSettings), "BrushGpencilSettings");
}
brush->gpencil_settings->draw_smoothlvl = 1;
brush->gpencil_settings->flag = 0;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 1.0f;
brush->gpencil_settings->draw_jitter = 0.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_JITTER_PRESSURE;
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_PEN;
/* curves */
brush->gpencil_settings->curve_sensitivity = BKE_curvemapping_add(1, 0.0f, 0.0f, 1.0f, 1.0f);
brush->gpencil_settings->curve_strength = BKE_curvemapping_add(1, 0.0f, 0.0f, 1.0f, 1.0f);
brush->gpencil_settings->curve_jitter = BKE_curvemapping_add(1, 0.0f, 0.0f, 1.0f, 1.0f);
brush->gpencil_settings->curve_rand_pressure = BKE_curvemapping_add(1, 0.0f, 0.0f, 1.0f, 1.0f);
brush->gpencil_settings->curve_rand_strength = BKE_curvemapping_add(1, 0.0f, 0.0f, 1.0f, 1.0f);
brush->gpencil_settings->curve_rand_uv = BKE_curvemapping_add(1, 0.0f, 0.0f, 1.0f, 1.0f);
brush->gpencil_settings->curve_rand_hue = BKE_curvemapping_add(1, 0.0f, 0.0f, 1.0f, 1.0f);
brush->gpencil_settings->curve_rand_saturation = BKE_curvemapping_add(1, 0.0f, 0.0f, 1.0f, 1.0f);
brush->gpencil_settings->curve_rand_value = BKE_curvemapping_add(1, 0.0f, 0.0f, 1.0f, 1.0f);
}
/* add a new gp-brush */
Brush *BKE_brush_add_gpencil(Main *bmain, ToolSettings *ts, const char *name, eObjectMode mode)
{
Paint *paint = NULL;
Brush *brush;
switch (mode) {
case OB_MODE_PAINT_GPENCIL: {
paint = &ts->gp_paint->paint;
break;
}
case OB_MODE_SCULPT_GPENCIL: {
paint = &ts->gp_sculptpaint->paint;
break;
}
case OB_MODE_WEIGHT_GPENCIL: {
paint = &ts->gp_weightpaint->paint;
break;
}
case OB_MODE_VERTEX_GPENCIL: {
paint = &ts->gp_vertexpaint->paint;
break;
}
default:
paint = &ts->gp_paint->paint;
}
brush = BKE_brush_add(bmain, name, mode);
BKE_paint_brush_set(paint, brush);
id_us_min(&brush->id);
brush->size = 3;
/* grease pencil basic settings */
BKE_brush_init_gpencil_settings(brush);
/* return brush */
return brush;
}
/* Delete a Brush. */
bool BKE_brush_delete(Main *bmain, Brush *brush)
{
if (brush->id.tag & LIB_TAG_INDIRECT) {
return false;
}
if (BKE_library_ID_is_indirectly_used(bmain, brush) && ID_REAL_USERS(brush) <= 1 &&
ID_EXTRA_USERS(brush) == 0) {
return false;
}
BKE_id_delete(bmain, brush);
return true;
}
/* grease pencil cumapping->preset */
typedef enum eGPCurveMappingPreset {
GPCURVE_PRESET_PENCIL = 0,
GPCURVE_PRESET_INK = 1,
GPCURVE_PRESET_INKNOISE = 2,
GPCURVE_PRESET_MARKER = 3,
GPCURVE_PRESET_CHISEL_SENSIVITY = 4,
GPCURVE_PRESET_CHISEL_STRENGTH = 5,
} eGPCurveMappingPreset;
static void brush_gpencil_curvemap_reset(CurveMap *cuma, int tot, int preset)
{
if (cuma->curve) {
MEM_freeN(cuma->curve);
}
cuma->totpoint = tot;
cuma->curve = MEM_callocN(cuma->totpoint * sizeof(CurveMapPoint), __func__);
switch (preset) {
case GPCURVE_PRESET_PENCIL:
cuma->curve[0].x = 0.0f;
cuma->curve[0].y = 0.0f;
cuma->curve[1].x = 0.75115f;
cuma->curve[1].y = 0.25f;
cuma->curve[2].x = 1.0f;
cuma->curve[2].y = 1.0f;
break;
case GPCURVE_PRESET_INK:
cuma->curve[0].x = 0.0f;
cuma->curve[0].y = 0.0f;
cuma->curve[1].x = 0.63448f;
cuma->curve[1].y = 0.375f;
cuma->curve[2].x = 1.0f;
cuma->curve[2].y = 1.0f;
break;
case GPCURVE_PRESET_INKNOISE:
cuma->curve[0].x = 0.0f;
cuma->curve[0].y = 0.0f;
cuma->curve[1].x = 0.55f;
cuma->curve[1].y = 0.45f;
cuma->curve[2].x = 0.85f;
cuma->curve[2].y = 1.0f;
break;
case GPCURVE_PRESET_MARKER:
cuma->curve[0].x = 0.0f;
cuma->curve[0].y = 0.0f;
cuma->curve[1].x = 0.38f;
cuma->curve[1].y = 0.22f;
cuma->curve[2].x = 0.65f;
cuma->curve[2].y = 0.68f;
cuma->curve[3].x = 1.0f;
cuma->curve[3].y = 1.0f;
break;
case GPCURVE_PRESET_CHISEL_SENSIVITY:
cuma->curve[0].x = 0.0f;
cuma->curve[0].y = 0.0f;
cuma->curve[1].x = 0.25f;
cuma->curve[1].y = 0.40f;
cuma->curve[2].x = 1.0f;
cuma->curve[2].y = 1.0f;
break;
case GPCURVE_PRESET_CHISEL_STRENGTH:
cuma->curve[0].x = 0.0f;
cuma->curve[0].y = 0.0f;
cuma->curve[1].x = 0.31f;
cuma->curve[1].y = 0.22f;
cuma->curve[2].x = 0.61f;
cuma->curve[2].y = 0.88f;
cuma->curve[3].x = 1.0f;
cuma->curve[3].y = 1.0f;
break;
default:
break;
}
if (cuma->table) {
MEM_freeN(cuma->table);
cuma->table = NULL;
}
}
void BKE_gpencil_brush_preset_set(Main *bmain, Brush *brush, const short type)
{
#define SMOOTH_STROKE_RADIUS 40
#define SMOOTH_STROKE_FACTOR 0.9f
#define ACTIVE_SMOOTH 0.35f
CurveMapping *custom_curve = NULL;
/* Set general defaults at brush level. */
brush->smooth_stroke_radius = SMOOTH_STROKE_RADIUS;
brush->smooth_stroke_factor = SMOOTH_STROKE_FACTOR;
brush->rgb[0] = 0.498f;
brush->rgb[1] = 1.0f;
brush->rgb[2] = 0.498f;
brush->secondary_rgb[0] = 1.0f;
brush->secondary_rgb[1] = 1.0f;
brush->secondary_rgb[2] = 1.0f;
brush->curve_preset = BRUSH_CURVE_SMOOTH;
if (brush->gpencil_settings == NULL) {
return;
}
/* Set preset type. */
brush->gpencil_settings->preset_type = type;
/* Set vertex mix factor. */
brush->gpencil_settings->vertex_mode = GPPAINT_MODE_BOTH;
brush->gpencil_settings->vertex_factor = 1.0f;
switch (type) {
case GP_BRUSH_PRESET_AIRBRUSH: {
brush->size = 300.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 0.4f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
brush->gpencil_settings->input_samples = 10;
brush->gpencil_settings->active_smooth = ACTIVE_SMOOTH;
brush->gpencil_settings->draw_angle = 0.0f;
brush->gpencil_settings->draw_angle_factor = 0.0f;
brush->gpencil_settings->hardeness = 0.9f;
copy_v2_fl(brush->gpencil_settings->aspect_ratio, 1.0f);
brush->gpencil_tool = GPAINT_TOOL_DRAW;
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_AIRBRUSH;
/* Create and link Black Dots material to brush.
* This material is required because the brush uses the material to define how the stroke is
* drawn. */
Material *ma = BLI_findstring(&bmain->materials, "Dots Stroke", offsetof(ID, name) + 2);
if (ma == NULL) {
ma = BKE_gpencil_material_add(bmain, "Dots Stroke");
ma->gp_style->mode = GP_MATERIAL_MODE_DOT;
}
brush->gpencil_settings->material = ma;
/* Pin the matterial to the brush. */
brush->gpencil_settings->flag |= GP_BRUSH_MATERIAL_PINNED;
zero_v3(brush->secondary_rgb);
break;
}
case GP_BRUSH_PRESET_INK_PEN: {
brush->size = 60.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 1.0f;
brush->gpencil_settings->input_samples = 10;
brush->gpencil_settings->active_smooth = ACTIVE_SMOOTH;
brush->gpencil_settings->draw_angle = 0.0f;
brush->gpencil_settings->draw_angle_factor = 0.0f;
brush->gpencil_settings->hardeness = 1.0f;
copy_v2_fl(brush->gpencil_settings->aspect_ratio, 1.0f);
brush->gpencil_settings->flag |= GP_BRUSH_GROUP_SETTINGS;
brush->gpencil_settings->draw_smoothfac = 0.1f;
brush->gpencil_settings->draw_smoothlvl = 1;
brush->gpencil_settings->draw_subdivide = 0;
brush->gpencil_settings->simplify_f = 0.002f;
brush->gpencil_settings->draw_random_press = 0.0f;
brush->gpencil_settings->draw_jitter = 0.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_JITTER_PRESSURE;
/* Curve. */
custom_curve = brush->gpencil_settings->curve_sensitivity;
BKE_curvemapping_set_defaults(custom_curve, 0, 0.0f, 0.0f, 1.0f, 1.0f);
BKE_curvemapping_initialize(custom_curve);
brush_gpencil_curvemap_reset(custom_curve->cm, 3, GPCURVE_PRESET_INK);
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_INK;
brush->gpencil_tool = GPAINT_TOOL_DRAW;
zero_v3(brush->secondary_rgb);
break;
}
case GP_BRUSH_PRESET_INK_PEN_ROUGH: {
brush->size = 60.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 1.0f;
brush->gpencil_settings->input_samples = 10;
brush->gpencil_settings->active_smooth = ACTIVE_SMOOTH;
brush->gpencil_settings->draw_angle = 0.0f;
brush->gpencil_settings->draw_angle_factor = 0.0f;
brush->gpencil_settings->hardeness = 1.0f;
copy_v2_fl(brush->gpencil_settings->aspect_ratio, 1.0f);
brush->gpencil_settings->flag &= ~GP_BRUSH_GROUP_SETTINGS;
brush->gpencil_settings->draw_smoothfac = 0.0f;
brush->gpencil_settings->draw_smoothlvl = 2;
brush->gpencil_settings->draw_subdivide = 0;
brush->gpencil_settings->simplify_f = 0.000f;
brush->gpencil_settings->flag |= GP_BRUSH_GROUP_RANDOM;
brush->gpencil_settings->draw_random_press = 0.6f;
brush->gpencil_settings->draw_random_strength = 0.0f;
brush->gpencil_settings->draw_jitter = 0.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_JITTER_PRESSURE;
/* Curve. */
custom_curve = brush->gpencil_settings->curve_sensitivity;
BKE_curvemapping_set_defaults(custom_curve, 0, 0.0f, 0.0f, 1.0f, 1.0f);
BKE_curvemapping_initialize(custom_curve);
brush_gpencil_curvemap_reset(custom_curve->cm, 3, GPCURVE_PRESET_INKNOISE);
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_INKNOISE;
brush->gpencil_tool = GPAINT_TOOL_DRAW;
zero_v3(brush->secondary_rgb);
break;
}
case GP_BRUSH_PRESET_MARKER_BOLD: {
brush->size = 150.0f;
brush->gpencil_settings->flag &= ~GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 0.3f;
brush->gpencil_settings->input_samples = 10;
brush->gpencil_settings->active_smooth = ACTIVE_SMOOTH;
brush->gpencil_settings->draw_angle = 0.0f;
brush->gpencil_settings->draw_angle_factor = 0.0f;
brush->gpencil_settings->hardeness = 1.0f;
copy_v2_fl(brush->gpencil_settings->aspect_ratio, 1.0f);
brush->gpencil_settings->flag |= GP_BRUSH_GROUP_SETTINGS;
brush->gpencil_settings->draw_smoothfac = 0.1f;
brush->gpencil_settings->draw_smoothlvl = 1;
brush->gpencil_settings->draw_subdivide = 0;
brush->gpencil_settings->simplify_f = 0.002f;
brush->gpencil_settings->flag &= ~GP_BRUSH_GROUP_RANDOM;
brush->gpencil_settings->draw_random_press = 0.0f;
brush->gpencil_settings->draw_random_strength = 0.0f;
brush->gpencil_settings->draw_jitter = 0.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_JITTER_PRESSURE;
/* Curve. */
custom_curve = brush->gpencil_settings->curve_sensitivity;
BKE_curvemapping_set_defaults(custom_curve, 0, 0.0f, 0.0f, 1.0f, 1.0f);
BKE_curvemapping_initialize(custom_curve);
brush_gpencil_curvemap_reset(custom_curve->cm, 4, GPCURVE_PRESET_MARKER);
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_MARKER;
brush->gpencil_tool = GPAINT_TOOL_DRAW;
zero_v3(brush->secondary_rgb);
break;
}
case GP_BRUSH_PRESET_MARKER_CHISEL: {
brush->size = 150.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 1.0f;
brush->gpencil_settings->input_samples = 10;
brush->gpencil_settings->active_smooth = 0.3f;
brush->gpencil_settings->draw_angle = DEG2RAD(35.0f);
brush->gpencil_settings->draw_angle_factor = 0.5f;
brush->gpencil_settings->hardeness = 1.0f;
copy_v2_fl(brush->gpencil_settings->aspect_ratio, 1.0f);
brush->gpencil_settings->flag |= GP_BRUSH_GROUP_SETTINGS;
brush->gpencil_settings->draw_smoothfac = 0.0f;
brush->gpencil_settings->draw_smoothlvl = 1;
brush->gpencil_settings->draw_subdivide = 0;
brush->gpencil_settings->simplify_f = 0.002f;
brush->gpencil_settings->flag &= ~GP_BRUSH_GROUP_RANDOM;
brush->gpencil_settings->draw_random_press = 0.0f;
brush->gpencil_settings->draw_jitter = 0.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_JITTER_PRESSURE;
/* Curve. */
custom_curve = brush->gpencil_settings->curve_sensitivity;
BKE_curvemapping_set_defaults(custom_curve, 0, 0.0f, 0.0f, 1.0f, 1.0f);
BKE_curvemapping_initialize(custom_curve);
brush_gpencil_curvemap_reset(custom_curve->cm, 3, GPCURVE_PRESET_CHISEL_SENSIVITY);
custom_curve = brush->gpencil_settings->curve_strength;
BKE_curvemapping_set_defaults(custom_curve, 0, 0.0f, 0.0f, 1.0f, 1.0f);
BKE_curvemapping_initialize(custom_curve);
brush_gpencil_curvemap_reset(custom_curve->cm, 4, GPCURVE_PRESET_CHISEL_STRENGTH);
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_CHISEL;
brush->gpencil_tool = GPAINT_TOOL_DRAW;
zero_v3(brush->secondary_rgb);
break;
}
case GP_BRUSH_PRESET_PEN: {
brush->size = 25.0f;
brush->gpencil_settings->flag &= ~GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 1.0f;
brush->gpencil_settings->flag &= ~GP_BRUSH_USE_STRENGTH_PRESSURE;
brush->gpencil_settings->input_samples = 10;
brush->gpencil_settings->active_smooth = ACTIVE_SMOOTH;
brush->gpencil_settings->draw_angle = 0.0f;
brush->gpencil_settings->draw_angle_factor = 0.0f;
brush->gpencil_settings->hardeness = 1.0f;
copy_v2_fl(brush->gpencil_settings->aspect_ratio, 1.0f);
brush->gpencil_settings->flag |= GP_BRUSH_GROUP_SETTINGS;
brush->gpencil_settings->draw_smoothfac = 0.0f;
brush->gpencil_settings->draw_smoothlvl = 1;
brush->gpencil_settings->draw_subdivide = 1;
brush->gpencil_settings->simplify_f = 0.002f;
brush->gpencil_settings->draw_random_press = 0.0f;
brush->gpencil_settings->draw_random_strength = 0.0f;
brush->gpencil_settings->draw_jitter = 0.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_JITTER_PRESSURE;
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_PEN;
brush->gpencil_tool = GPAINT_TOOL_DRAW;
zero_v3(brush->secondary_rgb);
break;
}
case GP_BRUSH_PRESET_PENCIL_SOFT: {
brush->size = 80.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 0.4f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
brush->gpencil_settings->input_samples = 10;
brush->gpencil_settings->active_smooth = ACTIVE_SMOOTH;
brush->gpencil_settings->draw_angle = 0.0f;
brush->gpencil_settings->draw_angle_factor = 0.0f;
brush->gpencil_settings->hardeness = 0.8f;
copy_v2_fl(brush->gpencil_settings->aspect_ratio, 1.0f);
brush->gpencil_settings->flag |= GP_BRUSH_GROUP_SETTINGS;
brush->gpencil_settings->draw_smoothfac = 0.0f;
brush->gpencil_settings->draw_smoothlvl = 1;
brush->gpencil_settings->draw_subdivide = 0;
brush->gpencil_settings->simplify_f = 0.000f;
brush->gpencil_settings->draw_random_press = 0.0f;
brush->gpencil_settings->draw_random_strength = 0.0f;
brush->gpencil_settings->draw_jitter = 0.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_JITTER_PRESSURE;
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_PENCIL;
brush->gpencil_tool = GPAINT_TOOL_DRAW;
/* Create and link Black Dots material to brush.
* This material is required because the brush uses the material to define how the stroke is
* drawn. */
Material *ma = BLI_findstring(&bmain->materials, "Dots Stroke", offsetof(ID, name) + 2);
if (ma == NULL) {
ma = BKE_gpencil_material_add(bmain, "Dots Stroke");
ma->gp_style->mode = GP_MATERIAL_MODE_DOT;
}
brush->gpencil_settings->material = ma;
/* Pin the matterial to the brush. */
brush->gpencil_settings->flag |= GP_BRUSH_MATERIAL_PINNED;
zero_v3(brush->secondary_rgb);
break;
}
case GP_BRUSH_PRESET_PENCIL: {
brush->size = 20.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 0.6f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
brush->gpencil_settings->input_samples = 10;
brush->gpencil_settings->active_smooth = ACTIVE_SMOOTH;
brush->gpencil_settings->draw_angle = 0.0f;
brush->gpencil_settings->draw_angle_factor = 0.0f;
brush->gpencil_settings->hardeness = 1.0f;
copy_v2_fl(brush->gpencil_settings->aspect_ratio, 1.0f);
brush->gpencil_settings->flag |= GP_BRUSH_GROUP_SETTINGS;
brush->gpencil_settings->draw_smoothfac = 0.0f;
brush->gpencil_settings->draw_smoothlvl = 1;
brush->gpencil_settings->draw_subdivide = 0;
brush->gpencil_settings->simplify_f = 0.002f;
brush->gpencil_settings->draw_random_press = 0.0f;
brush->gpencil_settings->draw_jitter = 0.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_JITTER_PRESSURE;
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_PENCIL;
brush->gpencil_tool = GPAINT_TOOL_DRAW;
zero_v3(brush->secondary_rgb);
break;
}
case GP_BRUSH_PRESET_FILL_AREA: {
brush->size = 20.0f;
brush->gpencil_settings->fill_leak = 3;
brush->gpencil_settings->fill_threshold = 0.1f;
brush->gpencil_settings->fill_simplylvl = 1;
brush->gpencil_settings->fill_factor = 1;
brush->gpencil_settings->draw_strength = 1.0f;
brush->gpencil_settings->hardeness = 1.0f;
copy_v2_fl(brush->gpencil_settings->aspect_ratio, 1.0f);
brush->gpencil_settings->draw_smoothfac = 0.1f;
brush->gpencil_settings->draw_smoothlvl = 1;
brush->gpencil_settings->draw_subdivide = 1;
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_FILL;
brush->gpencil_tool = GPAINT_TOOL_FILL;
brush->gpencil_settings->vertex_mode = GPPAINT_MODE_FILL;
zero_v3(brush->secondary_rgb);
break;
}
case GP_BRUSH_PRESET_ERASER_SOFT: {
brush->size = 30.0f;
brush->gpencil_settings->draw_strength = 0.5f;
brush->gpencil_settings->flag |= GP_BRUSH_DEFAULT_ERASER;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_ERASE_SOFT;
brush->gpencil_tool = GPAINT_TOOL_ERASE;
brush->gpencil_settings->eraser_mode = GP_BRUSH_ERASER_SOFT;
brush->gpencil_settings->era_strength_f = 100.0f;
brush->gpencil_settings->era_thickness_f = 10.0f;
break;
}
case GP_BRUSH_PRESET_ERASER_HARD: {
brush->size = 30.0f;
brush->gpencil_settings->draw_strength = 1.0f;
brush->gpencil_settings->eraser_mode = GP_BRUSH_ERASER_SOFT;
brush->gpencil_settings->era_strength_f = 100.0f;
brush->gpencil_settings->era_thickness_f = 50.0f;
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_ERASE_HARD;
brush->gpencil_tool = GPAINT_TOOL_ERASE;
break;
}
case GP_BRUSH_PRESET_ERASER_POINT: {
brush->size = 30.0f;
brush->gpencil_settings->eraser_mode = GP_BRUSH_ERASER_HARD;
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_ERASE_HARD;
brush->gpencil_tool = GPAINT_TOOL_ERASE;
break;
}
case GP_BRUSH_PRESET_ERASER_STROKE: {
brush->size = 30.0f;
brush->gpencil_settings->eraser_mode = GP_BRUSH_ERASER_STROKE;
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_ERASE_STROKE;
brush->gpencil_tool = GPAINT_TOOL_ERASE;
break;
}
case GP_BRUSH_PRESET_TINT: {
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_TINT;
brush->gpencil_tool = GPAINT_TOOL_TINT;
brush->size = 25.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 0.8f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
zero_v3(brush->secondary_rgb);
break;
}
case GP_BRUSH_PRESET_VERTEX_DRAW: {
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_VERTEX_DRAW;
brush->gpencil_vertex_tool = GPVERTEX_TOOL_DRAW;
brush->size = 25.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 0.8f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
zero_v3(brush->secondary_rgb);
break;
}
case GP_BRUSH_PRESET_VERTEX_BLUR: {
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_VERTEX_BLUR;
brush->gpencil_vertex_tool = GPVERTEX_TOOL_BLUR;
brush->size = 25.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 0.8f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
zero_v3(brush->secondary_rgb);
break;
}
case GP_BRUSH_PRESET_VERTEX_AVERAGE: {
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_VERTEX_AVERAGE;
brush->gpencil_vertex_tool = GPVERTEX_TOOL_AVERAGE;
brush->size = 25.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 0.8f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
zero_v3(brush->secondary_rgb);
break;
}
case GP_BRUSH_PRESET_VERTEX_SMEAR: {
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_VERTEX_SMEAR;
brush->gpencil_vertex_tool = GPVERTEX_TOOL_SMEAR;
brush->size = 25.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 0.8f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
zero_v3(brush->secondary_rgb);
break;
}
case GP_BRUSH_PRESET_VERTEX_REPLACE: {
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_VERTEX_REPLACE;
brush->gpencil_vertex_tool = GPVERTEX_TOOL_REPLACE;
brush->size = 25.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 0.8f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
zero_v3(brush->secondary_rgb);
break;
}
case GP_BRUSH_PRESET_SMOOTH_STROKE: {
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_GPBRUSH_SMOOTH;
brush->gpencil_sculpt_tool = GPSCULPT_TOOL_SMOOTH;
brush->size = 25.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 0.3f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
brush->gpencil_settings->sculpt_flag = GP_SCULPT_FLAG_SMOOTH_PRESSURE;
brush->gpencil_settings->sculpt_mode_flag |= GP_SCULPT_FLAGMODE_APPLY_POSITION;
break;
}
case GP_BRUSH_PRESET_STRENGTH_STROKE: {
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_GPBRUSH_STRENGTH;
brush->gpencil_sculpt_tool = GPSCULPT_TOOL_STRENGTH;
brush->size = 25.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 0.3f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
brush->gpencil_settings->sculpt_flag = GP_SCULPT_FLAG_SMOOTH_PRESSURE;
brush->gpencil_settings->sculpt_mode_flag |= GP_SCULPT_FLAGMODE_APPLY_POSITION;
break;
}
case GP_BRUSH_PRESET_THICKNESS_STROKE: {
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_GPBRUSH_THICKNESS;
brush->gpencil_sculpt_tool = GPSCULPT_TOOL_THICKNESS;
brush->size = 25.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 0.5f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
brush->gpencil_settings->sculpt_mode_flag |= GP_SCULPT_FLAGMODE_APPLY_POSITION;
break;
}
case GP_BRUSH_PRESET_GRAB_STROKE: {
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_GPBRUSH_GRAB;
brush->gpencil_sculpt_tool = GPSCULPT_TOOL_GRAB;
brush->gpencil_settings->flag &= ~GP_BRUSH_USE_PRESSURE;
brush->size = 25.0f;
brush->gpencil_settings->draw_strength = 0.3f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
brush->gpencil_settings->sculpt_mode_flag |= GP_SCULPT_FLAGMODE_APPLY_POSITION;
break;
}
case GP_BRUSH_PRESET_PUSH_STROKE: {
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_GPBRUSH_PUSH;
brush->gpencil_sculpt_tool = GPSCULPT_TOOL_PUSH;
brush->size = 25.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 0.3f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
brush->gpencil_settings->sculpt_mode_flag |= GP_SCULPT_FLAGMODE_APPLY_POSITION;
break;
}
case GP_BRUSH_PRESET_TWIST_STROKE: {
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_GPBRUSH_TWIST;
brush->gpencil_sculpt_tool = GPSCULPT_TOOL_TWIST;
brush->size = 50.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 0.3f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
brush->gpencil_settings->sculpt_mode_flag |= GP_SCULPT_FLAGMODE_APPLY_POSITION;
break;
}
case GP_BRUSH_PRESET_PINCH_STROKE: {
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_GPBRUSH_PINCH;
brush->gpencil_sculpt_tool = GPSCULPT_TOOL_PINCH;
brush->size = 50.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 0.5f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
brush->gpencil_settings->sculpt_mode_flag |= GP_SCULPT_FLAGMODE_APPLY_POSITION;
break;
}
case GP_BRUSH_PRESET_RANDOMIZE_STROKE: {
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_GPBRUSH_RANDOMIZE;
brush->gpencil_sculpt_tool = GPSCULPT_TOOL_RANDOMIZE;
brush->size = 25.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 0.5f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
brush->gpencil_settings->sculpt_mode_flag |= GP_SCULPT_FLAGMODE_APPLY_POSITION;
break;
}
case GP_BRUSH_PRESET_CLONE_STROKE: {
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_GPBRUSH_CLONE;
brush->gpencil_sculpt_tool = GPSCULPT_TOOL_CLONE;
brush->gpencil_settings->flag &= ~GP_BRUSH_USE_PRESSURE;
brush->size = 25.0f;
brush->gpencil_settings->draw_strength = 1.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
brush->gpencil_settings->sculpt_mode_flag |= GP_SCULPT_FLAGMODE_APPLY_POSITION;
break;
}
case GP_BRUSH_PRESET_DRAW_WEIGHT: {
brush->gpencil_settings->icon_id = GP_BRUSH_ICON_GPBRUSH_WEIGHT;
brush->gpencil_weight_tool = GPWEIGHT_TOOL_DRAW;
brush->size = 25.0f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_PRESSURE;
brush->gpencil_settings->draw_strength = 0.8f;
brush->gpencil_settings->flag |= GP_BRUSH_USE_STRENGTH_PRESSURE;
brush->gpencil_settings->sculpt_mode_flag |= GP_SCULPT_FLAGMODE_APPLY_POSITION;
break;
}
default:
break;
}
}
static Brush *gpencil_brush_ensure(
Main *bmain, ToolSettings *ts, const char *brush_name, eObjectMode mode, bool *r_new)
{
*r_new = false;
Brush *brush = BLI_findstring(&bmain->brushes, brush_name, offsetof(ID, name) + 2);
/* If the brush exist, but the type is not GPencil or the mode is wrong, create a new one. */
if ((brush != NULL) && ((brush->gpencil_settings == NULL) || (brush->ob_mode != mode))) {
brush = NULL;
}
if (brush == NULL) {
brush = BKE_brush_add_gpencil(bmain, ts, brush_name, mode);
*r_new = true;
}
if (brush->gpencil_settings == NULL) {
BKE_brush_init_gpencil_settings(brush);
}
return brush;
}
/* Create a set of grease pencil Drawing presets. */
void BKE_brush_gpencil_paint_presets(Main *bmain, ToolSettings *ts, const bool reset)
{
bool r_new = false;
Paint *paint = &ts->gp_paint->paint;
Brush *brush_prev = paint->brush;
Brush *brush, *deft_draw;
/* Airbrush brush. */
brush = gpencil_brush_ensure(bmain, ts, "Airbrush", OB_MODE_PAINT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_AIRBRUSH);
}
/* Ink Pen brush. */
brush = gpencil_brush_ensure(bmain, ts, "Ink Pen", OB_MODE_PAINT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_INK_PEN);
}
/* Ink Pen Rough brush. */
brush = gpencil_brush_ensure(bmain, ts, "Ink Pen Rough", OB_MODE_PAINT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_INK_PEN_ROUGH);
}
/* Marker Bold brush. */
brush = gpencil_brush_ensure(bmain, ts, "Marker Bold", OB_MODE_PAINT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_MARKER_BOLD);
}
/* Marker Chisel brush. */
brush = gpencil_brush_ensure(bmain, ts, "Marker Chisel", OB_MODE_PAINT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_MARKER_CHISEL);
}
/* Pen brush. */
brush = gpencil_brush_ensure(bmain, ts, "Pen", OB_MODE_PAINT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_PEN);
}
/* Pencil Soft brush. */
brush = gpencil_brush_ensure(bmain, ts, "Pencil Soft", OB_MODE_PAINT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_PENCIL_SOFT);
}
/* Pencil brush. */
brush = gpencil_brush_ensure(bmain, ts, "Pencil", OB_MODE_PAINT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_PENCIL);
}
deft_draw = brush; /* save default brush. */
/* Fill brush. */
brush = gpencil_brush_ensure(bmain, ts, "Fill Area", OB_MODE_PAINT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_FILL_AREA);
}
/* Soft Eraser brush. */
brush = gpencil_brush_ensure(bmain, ts, "Eraser Soft", OB_MODE_PAINT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_ERASER_SOFT);
}
/* Hard Eraser brush. */
brush = gpencil_brush_ensure(bmain, ts, "Eraser Hard", OB_MODE_PAINT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_ERASER_HARD);
}
/* Point Eraser brush. */
brush = gpencil_brush_ensure(bmain, ts, "Eraser Point", OB_MODE_PAINT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_ERASER_POINT);
}
/* Stroke Eraser brush. */
brush = gpencil_brush_ensure(bmain, ts, "Eraser Stroke", OB_MODE_PAINT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_ERASER_STROKE);
}
/* Tint brush. */
brush = gpencil_brush_ensure(bmain, ts, "Tint", OB_MODE_PAINT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_TINT);
}
/* Set default Draw brush. */
if (reset || brush_prev == NULL) {
BKE_paint_brush_set(paint, deft_draw);
}
else {
if (brush_prev != NULL) {
BKE_paint_brush_set(paint, brush_prev);
}
}
}
/* Create a set of grease pencil Vertex Paint presets. */
void BKE_brush_gpencil_vertex_presets(Main *bmain, ToolSettings *ts, const bool reset)
{
bool r_new = false;
Paint *vertexpaint = &ts->gp_vertexpaint->paint;
Brush *brush_prev = vertexpaint->brush;
Brush *brush, *deft_vertex;
/* Vertex Draw brush. */
brush = gpencil_brush_ensure(bmain, ts, "Vertex Draw", OB_MODE_VERTEX_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_VERTEX_DRAW);
}
deft_vertex = brush; /* save default brush. */
/* Vertex Blur brush. */
brush = gpencil_brush_ensure(bmain, ts, "Vertex Blur", OB_MODE_VERTEX_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_VERTEX_BLUR);
}
/* Vertex Average brush. */
brush = gpencil_brush_ensure(bmain, ts, "Vertex Average", OB_MODE_VERTEX_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_VERTEX_AVERAGE);
}
/* Vertex Smear brush. */
brush = gpencil_brush_ensure(bmain, ts, "Vertex Smear", OB_MODE_VERTEX_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_VERTEX_SMEAR);
}
/* Vertex Replace brush. */
brush = gpencil_brush_ensure(bmain, ts, "Vertex Replace", OB_MODE_VERTEX_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_VERTEX_REPLACE);
}
/* Set default Vertex brush. */
if (reset || brush_prev == NULL) {
BKE_paint_brush_set(vertexpaint, deft_vertex);
}
else {
if (brush_prev != NULL) {
BKE_paint_brush_set(vertexpaint, brush_prev);
}
}
}
/* Create a set of grease pencil Sculpt Paint presets. */
void BKE_brush_gpencil_sculpt_presets(Main *bmain, ToolSettings *ts, const bool reset)
{
bool r_new = false;
Paint *sculptpaint = &ts->gp_sculptpaint->paint;
Brush *brush_prev = sculptpaint->brush;
Brush *brush, *deft_sculpt;
/* Smooth brush. */
brush = gpencil_brush_ensure(bmain, ts, "Smooth Stroke", OB_MODE_SCULPT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_SMOOTH_STROKE);
}
deft_sculpt = brush;
/* Strength brush. */
brush = gpencil_brush_ensure(bmain, ts, "Strength Stroke", OB_MODE_SCULPT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_STRENGTH_STROKE);
}
/* Thickness brush. */
brush = gpencil_brush_ensure(bmain, ts, "Thickness Stroke", OB_MODE_SCULPT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_THICKNESS_STROKE);
}
/* Grab brush. */
brush = gpencil_brush_ensure(bmain, ts, "Grab Stroke", OB_MODE_SCULPT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_GRAB_STROKE);
}
/* Push brush. */
brush = gpencil_brush_ensure(bmain, ts, "Push Stroke", OB_MODE_SCULPT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_PUSH_STROKE);
}
/* Twist brush. */
brush = gpencil_brush_ensure(bmain, ts, "Twist Stroke", OB_MODE_SCULPT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_TWIST_STROKE);
}
/* Pinch brush. */
brush = gpencil_brush_ensure(bmain, ts, "Pinch Stroke", OB_MODE_SCULPT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_PINCH_STROKE);
}
/* Randomize brush. */
brush = gpencil_brush_ensure(bmain, ts, "Randomize Stroke", OB_MODE_SCULPT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_RANDOMIZE_STROKE);
}
/* Clone brush. */
brush = gpencil_brush_ensure(bmain, ts, "Clone Stroke", OB_MODE_SCULPT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_CLONE_STROKE);
}
/* Set default brush. */
if (reset || brush_prev == NULL) {
BKE_paint_brush_set(sculptpaint, deft_sculpt);
}
else {
if (brush_prev != NULL) {
BKE_paint_brush_set(sculptpaint, brush_prev);
}
}
}
/* Create a set of grease pencil Weight Paint presets. */
void BKE_brush_gpencil_weight_presets(Main *bmain, ToolSettings *ts, const bool reset)
{
bool r_new = false;
Paint *weightpaint = &ts->gp_weightpaint->paint;
Brush *brush_prev = weightpaint->brush;
Brush *brush, *deft_weight;
/* Vertex Draw brush. */
brush = gpencil_brush_ensure(bmain, ts, "Draw Weight", OB_MODE_WEIGHT_GPENCIL, &r_new);
if ((reset) || (r_new)) {
BKE_gpencil_brush_preset_set(bmain, brush, GP_BRUSH_PRESET_DRAW_WEIGHT);
}
deft_weight = brush; /* save default brush. */
/* Set default brush. */
if (reset || brush_prev == NULL) {
BKE_paint_brush_set(weightpaint, deft_weight);
}
else {
if (brush_prev != NULL) {
BKE_paint_brush_set(weightpaint, brush_prev);
}
}
}
struct Brush *BKE_brush_first_search(struct Main *bmain, const eObjectMode ob_mode)
{
Brush *brush;
for (brush = bmain->brushes.first; brush; brush = brush->id.next) {
if (brush->ob_mode & ob_mode) {
return brush;
}
}
return NULL;
}
Brush *BKE_brush_copy(Main *bmain, const Brush *brush)
{
Brush *brush_copy;
BKE_id_copy(bmain, &brush->id, (ID **)&brush_copy);
return brush_copy;
}
void BKE_brush_debug_print_state(Brush *br)
{
/* create a fake brush and set it to the defaults */
Brush def = {{NULL}};
brush_defaults(&def);
#define BR_TEST(field, t) \
if (br->field != def.field) \
printf("br->" #field " = %" #t ";\n", br->field)
#define BR_TEST_FLAG(_f) \
if ((br->flag & _f) && !(def.flag & _f)) \
printf("br->flag |= " #_f ";\n"); \
else if (!(br->flag & _f) && (def.flag & _f)) \
printf("br->flag &= ~" #_f ";\n")
#define BR_TEST_FLAG_OVERLAY(_f) \
if ((br->overlay_flags & _f) && !(def.overlay_flags & _f)) \
printf("br->overlay_flags |= " #_f ";\n"); \
else if (!(br->overlay_flags & _f) && (def.overlay_flags & _f)) \
printf("br->overlay_flags &= ~" #_f ";\n")
/* print out any non-default brush state */
BR_TEST(normal_weight, f);
BR_TEST(blend, d);
BR_TEST(size, d);
/* br->flag */
BR_TEST_FLAG(BRUSH_AIRBRUSH);
BR_TEST_FLAG(BRUSH_ALPHA_PRESSURE);
BR_TEST_FLAG(BRUSH_SIZE_PRESSURE);
BR_TEST_FLAG(BRUSH_JITTER_PRESSURE);
BR_TEST_FLAG(BRUSH_SPACING_PRESSURE);
BR_TEST_FLAG(BRUSH_ANCHORED);
BR_TEST_FLAG(BRUSH_DIR_IN);
BR_TEST_FLAG(BRUSH_SPACE);
BR_TEST_FLAG(BRUSH_SMOOTH_STROKE);
BR_TEST_FLAG(BRUSH_PERSISTENT);
BR_TEST_FLAG(BRUSH_ACCUMULATE);
BR_TEST_FLAG(BRUSH_LOCK_ALPHA);
BR_TEST_FLAG(BRUSH_ORIGINAL_NORMAL);
BR_TEST_FLAG(BRUSH_OFFSET_PRESSURE);
BR_TEST_FLAG(BRUSH_SPACE_ATTEN);
BR_TEST_FLAG(BRUSH_ADAPTIVE_SPACE);
BR_TEST_FLAG(BRUSH_LOCK_SIZE);
BR_TEST_FLAG(BRUSH_EDGE_TO_EDGE);
BR_TEST_FLAG(BRUSH_DRAG_DOT);
BR_TEST_FLAG(BRUSH_INVERSE_SMOOTH_PRESSURE);
BR_TEST_FLAG(BRUSH_PLANE_TRIM);
BR_TEST_FLAG(BRUSH_FRONTFACE);
BR_TEST_FLAG(BRUSH_CUSTOM_ICON);
BR_TEST_FLAG_OVERLAY(BRUSH_OVERLAY_CURSOR);
BR_TEST_FLAG_OVERLAY(BRUSH_OVERLAY_PRIMARY);
BR_TEST_FLAG_OVERLAY(BRUSH_OVERLAY_SECONDARY);
BR_TEST_FLAG_OVERLAY(BRUSH_OVERLAY_CURSOR_OVERRIDE_ON_STROKE);
BR_TEST_FLAG_OVERLAY(BRUSH_OVERLAY_PRIMARY_OVERRIDE_ON_STROKE);
BR_TEST_FLAG_OVERLAY(BRUSH_OVERLAY_SECONDARY_OVERRIDE_ON_STROKE);
BR_TEST(jitter, f);
BR_TEST(spacing, d);
BR_TEST(smooth_stroke_radius, d);
BR_TEST(smooth_stroke_factor, f);
BR_TEST(rate, f);
BR_TEST(alpha, f);
BR_TEST(sculpt_plane, d);
BR_TEST(plane_offset, f);
BR_TEST(autosmooth_factor, f);
BR_TEST(topology_rake_factor, f);
BR_TEST(crease_pinch_factor, f);
BR_TEST(plane_trim, f);
BR_TEST(texture_sample_bias, f);
BR_TEST(texture_overlay_alpha, d);
BR_TEST(add_col[0], f);
BR_TEST(add_col[1], f);
BR_TEST(add_col[2], f);
BR_TEST(add_col[3], f);
BR_TEST(sub_col[0], f);
BR_TEST(sub_col[1], f);
BR_TEST(sub_col[2], f);
BR_TEST(sub_col[3], f);
printf("\n");
#undef BR_TEST
#undef BR_TEST_FLAG
}
void BKE_brush_sculpt_reset(Brush *br)
{
/* enable this to see any non-default
* settings used by a brush: */
// BKE_brush_debug_print_state(br);
brush_defaults(br);
BKE_brush_curve_preset(br, CURVE_PRESET_SMOOTH);
/* Use the curve presets by default */
br->curve_preset = BRUSH_CURVE_SMOOTH;
/* Note that sculpt defaults where set when 0.5 was the default (now it's 1.0)
* assign this so logic below can remain the same. */
br->alpha = 0.5f;
/* Brush settings */
switch (br->sculpt_tool) {
case SCULPT_TOOL_DRAW_SHARP:
br->flag |= BRUSH_DIR_IN;
br->curve_preset = BRUSH_CURVE_POW4;
br->spacing = 5;
break;
case SCULPT_TOOL_SLIDE_RELAX:
br->spacing = 10;
br->alpha = 1.0f;
br->slide_deform_type = BRUSH_SLIDE_DEFORM_DRAG;
break;
case SCULPT_TOOL_CLAY:
br->flag |= BRUSH_SIZE_PRESSURE;
br->spacing = 3;
br->autosmooth_factor = 0.25f;
br->normal_radius_factor = 0.75f;
br->hardness = 0.65f;
break;
case SCULPT_TOOL_CLAY_THUMB:
br->alpha = 0.5f;
br->normal_radius_factor = 1.0f;
br->spacing = 6;
br->hardness = 0.5f;
br->flag |= BRUSH_SIZE_PRESSURE;
br->flag &= ~BRUSH_SPACE_ATTEN;
break;
case SCULPT_TOOL_CLAY_STRIPS:
br->flag |= BRUSH_ACCUMULATE | BRUSH_SIZE_PRESSURE;
br->flag &= ~BRUSH_SPACE_ATTEN;
br->alpha = 0.6f;
br->spacing = 5;
br->normal_radius_factor = 1.55f;
br->tip_roundness = 0.18f;
br->curve_preset = BRUSH_CURVE_SMOOTHER;
break;
case SCULPT_TOOL_MULTIPLANE_SCRAPE:
br->flag2 |= BRUSH_MULTIPLANE_SCRAPE_DYNAMIC | BRUSH_MULTIPLANE_SCRAPE_PLANES_PREVIEW;
br->alpha = 0.7f;
br->normal_radius_factor = 0.70f;
br->multiplane_scrape_angle = 60;
br->curve_preset = BRUSH_CURVE_SMOOTH;
br->spacing = 5;
break;
case SCULPT_TOOL_CREASE:
br->flag |= BRUSH_DIR_IN;
br->alpha = 0.25;
break;
case SCULPT_TOOL_SCRAPE:
case SCULPT_TOOL_FILL:
br->alpha = 1.0f;
br->spacing = 7;
br->flag |= BRUSH_ACCUMULATE;
br->flag |= BRUSH_INVERT_TO_SCRAPE_FILL;
break;
case SCULPT_TOOL_ROTATE:
br->alpha = 1.0;
break;
case SCULPT_TOOL_SMOOTH:
br->flag &= ~BRUSH_SPACE_ATTEN;
br->automasking_flags |= BRUSH_AUTOMASKING_BOUNDARY_EDGES;
br->spacing = 5;
br->alpha = 0.7f;
br->surface_smooth_shape_preservation = 0.5f;
br->surface_smooth_current_vertex = 0.5f;
br->surface_smooth_iterations = 4;
break;
case SCULPT_TOOL_SNAKE_HOOK:
br->alpha = 1.0f;
br->rake_factor = 1.0f;
break;
case SCULPT_TOOL_THUMB:
br->size = 75;
br->flag &= ~BRUSH_ALPHA_PRESSURE;
br->flag &= ~BRUSH_SPACE;
br->flag &= ~BRUSH_SPACE_ATTEN;
break;
case SCULPT_TOOL_ELASTIC_DEFORM:
br->elastic_deform_volume_preservation = 0.4f;
br->elastic_deform_type = BRUSH_ELASTIC_DEFORM_GRAB_TRISCALE;
br->flag &= ~BRUSH_ALPHA_PRESSURE;
br->flag &= ~BRUSH_SPACE;
br->flag &= ~BRUSH_SPACE_ATTEN;
break;
case SCULPT_TOOL_POSE:
br->pose_smooth_iterations = 4;
br->pose_ik_segments = 1;
br->flag2 |= BRUSH_POSE_IK_ANCHORED | BRUSH_USE_CONNECTED_ONLY;
br->flag &= ~BRUSH_ALPHA_PRESSURE;
br->flag &= ~BRUSH_SPACE;
br->flag &= ~BRUSH_SPACE_ATTEN;
break;
case SCULPT_TOOL_DRAW_FACE_SETS:
br->alpha = 0.5f;
br->flag &= ~BRUSH_ALPHA_PRESSURE;
br->flag &= ~BRUSH_SPACE;
br->flag &= ~BRUSH_SPACE_ATTEN;
break;
case SCULPT_TOOL_GRAB:
br->alpha = 0.4f;
br->size = 75;
br->flag &= ~BRUSH_ALPHA_PRESSURE;
br->flag &= ~BRUSH_SPACE;
br->flag &= ~BRUSH_SPACE_ATTEN;
break;
case SCULPT_TOOL_CLOTH:
br->cloth_mass = 1.0f;
br->cloth_damping = 0.01f;
br->cloth_sim_limit = 2.5f;
br->cloth_sim_falloff = 0.75f;
br->cloth_deform_type = BRUSH_CLOTH_DEFORM_DRAG;
br->flag &= ~(BRUSH_ALPHA_PRESSURE | BRUSH_SIZE_PRESSURE);
break;
case SCULPT_TOOL_LAYER:
br->flag &= ~BRUSH_SPACE_ATTEN;
br->hardness = 0.35f;
br->alpha = 1.0f;
br->height = 0.05f;
break;
case SCULPT_TOOL_PAINT:
br->hardness = 0.4f;
br->spacing = 10;
br->alpha = 0.6f;
br->flow = 1.0f;
br->tip_scale_x = 1.0f;
br->tip_roundness = 1.0f;
br->density = 1.0f;
br->flag &= ~BRUSH_SPACE_ATTEN;
zero_v3(br->rgb);
break;
case SCULPT_TOOL_SMEAR:
br->alpha = 1.0f;
br->spacing = 5;
br->flag &= ~BRUSH_ALPHA_PRESSURE;
br->flag &= ~BRUSH_SPACE_ATTEN;
br->curve_preset = BRUSH_CURVE_SPHERE;
break;
default:
break;
}
/* Cursor colors */
/* Default Alpha */
br->add_col[3] = 0.90f;
br->sub_col[3] = 0.90f;
switch (br->sculpt_tool) {
case SCULPT_TOOL_DRAW:
case SCULPT_TOOL_DRAW_SHARP:
case SCULPT_TOOL_CLAY:
case SCULPT_TOOL_CLAY_STRIPS:
case SCULPT_TOOL_CLAY_THUMB:
case SCULPT_TOOL_LAYER:
case SCULPT_TOOL_INFLATE:
case SCULPT_TOOL_BLOB:
case SCULPT_TOOL_CREASE:
br->add_col[0] = 0.0f;
br->add_col[1] = 0.5f;
br->add_col[2] = 1.0f;
br->sub_col[0] = 0.0f;
br->sub_col[1] = 0.5f;
br->sub_col[2] = 1.0f;
break;
case SCULPT_TOOL_SMOOTH:
case SCULPT_TOOL_FLATTEN:
case SCULPT_TOOL_FILL:
case SCULPT_TOOL_SCRAPE:
case SCULPT_TOOL_MULTIPLANE_SCRAPE:
br->add_col[0] = 0.877f;
br->add_col[1] = 0.142f;
br->add_col[2] = 0.117f;
br->sub_col[0] = 0.877f;
br->sub_col[1] = 0.142f;
br->sub_col[2] = 0.117f;
break;
case SCULPT_TOOL_PINCH:
case SCULPT_TOOL_GRAB:
case SCULPT_TOOL_SNAKE_HOOK:
case SCULPT_TOOL_THUMB:
case SCULPT_TOOL_NUDGE:
case SCULPT_TOOL_ROTATE:
case SCULPT_TOOL_ELASTIC_DEFORM:
case SCULPT_TOOL_POSE:
case SCULPT_TOOL_SLIDE_RELAX:
br->add_col[0] = 1.0f;
br->add_col[1] = 0.95f;
br->add_col[2] = 0.005f;
br->sub_col[0] = 1.0f;
br->sub_col[1] = 0.95f;
br->sub_col[2] = 0.005f;
break;
case SCULPT_TOOL_SIMPLIFY:
case SCULPT_TOOL_PAINT:
case SCULPT_TOOL_MASK:
case SCULPT_TOOL_DRAW_FACE_SETS:
br->add_col[0] = 0.75f;
br->add_col[1] = 0.75f;
br->add_col[2] = 0.75f;
br->sub_col[0] = 0.75f;
br->sub_col[1] = 0.75f;
br->sub_col[2] = 0.75f;
break;
case SCULPT_TOOL_CLOTH:
br->add_col[0] = 1.0f;
br->add_col[1] = 0.5f;
br->add_col[2] = 0.1f;
br->sub_col[0] = 1.0f;
br->sub_col[1] = 0.5f;
br->sub_col[2] = 0.1f;
break;
default:
break;
}
}
/**
* Library Operations
*/
void BKE_brush_curve_preset(Brush *b, eCurveMappingPreset preset)
{
CurveMapping *cumap = NULL;
CurveMap *cuma = NULL;
if (!b->curve) {
b->curve = BKE_curvemapping_add(1, 0, 0, 1, 1);
}
cumap = b->curve;
cumap->flag &= ~CUMA_EXTEND_EXTRAPOLATE;
cumap->preset = preset;
cuma = b->curve->cm;
BKE_curvemap_reset(cuma, &cumap->clipr, cumap->preset, CURVEMAP_SLOPE_NEGATIVE);
BKE_curvemapping_changed(cumap, false);
}
/* Generic texture sampler for 3D painting systems. point has to be either in
* region space mouse coordinates, or 3d world coordinates for 3D mapping.
*
* rgba outputs straight alpha. */
float BKE_brush_sample_tex_3d(const Scene *scene,
const Brush *br,
const float point[3],
float rgba[4],
const int thread,
struct ImagePool *pool)
{
UnifiedPaintSettings *ups = &scene->toolsettings->unified_paint_settings;
const MTex *mtex = &br->mtex;
float intensity = 1.0;
bool hasrgb = false;
if (!mtex->tex) {
intensity = 1;
}
else if (mtex->brush_map_mode == MTEX_MAP_MODE_3D) {
/* Get strength by feeding the vertex
* location directly into a texture */
hasrgb = RE_texture_evaluate(mtex, point, thread, pool, false, false, &intensity, rgba);
}
else if (mtex->brush_map_mode == MTEX_MAP_MODE_STENCIL) {
float rotation = -mtex->rot;
float point_2d[2] = {point[0], point[1]};
float x, y;
float co[3];
x = point_2d[0] - br->stencil_pos[0];
y = point_2d[1] - br->stencil_pos[1];
if (rotation > 0.001f || rotation < -0.001f) {
const float angle = atan2f(y, x) + rotation;
const float flen = sqrtf(x * x + y * y);
x = flen * cosf(angle);
y = flen * sinf(angle);
}
if (fabsf(x) > br->stencil_dimension[0] || fabsf(y) > br->stencil_dimension[1]) {
zero_v4(rgba);
return 0.0f;
}
x /= (br->stencil_dimension[0]);
y /= (br->stencil_dimension[1]);
co[0] = x;
co[1] = y;
co[2] = 0.0f;
hasrgb = RE_texture_evaluate(mtex, co, thread, pool, false, false, &intensity, rgba);
}
else {
float rotation = -mtex->rot;
float point_2d[2] = {point[0], point[1]};
float x = 0.0f, y = 0.0f; /* Quite warnings */
float invradius = 1.0f; /* Quite warnings */
float co[3];
if (mtex->brush_map_mode == MTEX_MAP_MODE_VIEW) {
/* keep coordinates relative to mouse */
rotation += ups->brush_rotation;
x = point_2d[0] - ups->tex_mouse[0];
y = point_2d[1] - ups->tex_mouse[1];
/* use pressure adjusted size for fixed mode */
invradius = 1.0f / ups->pixel_radius;
}
else if (mtex->brush_map_mode == MTEX_MAP_MODE_TILED) {
/* leave the coordinates relative to the screen */
/* use unadjusted size for tiled mode */
invradius = 1.0f / BKE_brush_size_get(scene, br);
x = point_2d[0];
y = point_2d[1];
}
else if (mtex->brush_map_mode == MTEX_MAP_MODE_RANDOM) {
rotation += ups->brush_rotation;
/* these contain a random coordinate */
x = point_2d[0] - ups->tex_mouse[0];
y = point_2d[1] - ups->tex_mouse[1];
invradius = 1.0f / ups->pixel_radius;
}
x *= invradius;
y *= invradius;
/* it is probably worth optimizing for those cases where
* the texture is not rotated by skipping the calls to
* atan2, sqrtf, sin, and cos. */
if (rotation > 0.001f || rotation < -0.001f) {
const float angle = atan2f(y, x) + rotation;
const float flen = sqrtf(x * x + y * y);
x = flen * cosf(angle);
y = flen * sinf(angle);
}
co[0] = x;
co[1] = y;
co[2] = 0.0f;
hasrgb = RE_texture_evaluate(mtex, co, thread, pool, false, false, &intensity, rgba);
}
intensity += br->texture_sample_bias;
if (!hasrgb) {
rgba[0] = intensity;
rgba[1] = intensity;
rgba[2] = intensity;
rgba[3] = 1.0f;
}
/* For consistency, sampling always returns color in linear space */
else if (ups->do_linear_conversion) {
IMB_colormanagement_colorspace_to_scene_linear_v3(rgba, ups->colorspace);
}
return intensity;
}
float BKE_brush_sample_masktex(
const Scene *scene, Brush *br, const float point[2], const int thread, struct ImagePool *pool)
{
UnifiedPaintSettings *ups = &scene->toolsettings->unified_paint_settings;
MTex *mtex = &br->mask_mtex;
float rgba[4], intensity;
if (!mtex->tex) {
return 1.0f;
}
if (mtex->brush_map_mode == MTEX_MAP_MODE_STENCIL) {
float rotation = -mtex->rot;
float point_2d[2] = {point[0], point[1]};
float x, y;
float co[3];
x = point_2d[0] - br->mask_stencil_pos[0];
y = point_2d[1] - br->mask_stencil_pos[1];
if (rotation > 0.001f || rotation < -0.001f) {
const float angle = atan2f(y, x) + rotation;
const float flen = sqrtf(x * x + y * y);
x = flen * cosf(angle);
y = flen * sinf(angle);
}
if (fabsf(x) > br->mask_stencil_dimension[0] || fabsf(y) > br->mask_stencil_dimension[1]) {
zero_v4(rgba);
return 0.0f;
}
x /= (br->mask_stencil_dimension[0]);
y /= (br->mask_stencil_dimension[1]);
co[0] = x;
co[1] = y;
co[2] = 0.0f;
RE_texture_evaluate(mtex, co, thread, pool, false, false, &intensity, rgba);
}
else {
float rotation = -mtex->rot;
float point_2d[2] = {point[0], point[1]};
float x = 0.0f, y = 0.0f; /* Quite warnings */
float invradius = 1.0f; /* Quite warnings */
float co[3];
if (mtex->brush_map_mode == MTEX_MAP_MODE_VIEW) {
/* keep coordinates relative to mouse */
rotation += ups->brush_rotation_sec;
x = point_2d[0] - ups->mask_tex_mouse[0];
y = point_2d[1] - ups->mask_tex_mouse[1];
/* use pressure adjusted size for fixed mode */
invradius = 1.0f / ups->pixel_radius;
}
else if (mtex->brush_map_mode == MTEX_MAP_MODE_TILED) {
/* leave the coordinates relative to the screen */
/* use unadjusted size for tiled mode */
invradius = 1.0f / BKE_brush_size_get(scene, br);
x = point_2d[0];
y = point_2d[1];
}
else if (mtex->brush_map_mode == MTEX_MAP_MODE_RANDOM) {
rotation += ups->brush_rotation_sec;
/* these contain a random coordinate */
x = point_2d[0] - ups->mask_tex_mouse[0];
y = point_2d[1] - ups->mask_tex_mouse[1];
invradius = 1.0f / ups->pixel_radius;
}
x *= invradius;
y *= invradius;
/* it is probably worth optimizing for those cases where
* the texture is not rotated by skipping the calls to
* atan2, sqrtf, sin, and cos. */
if (rotation > 0.001f || rotation < -0.001f) {
const float angle = atan2f(y, x) + rotation;
const float flen = sqrtf(x * x + y * y);
x = flen * cosf(angle);
y = flen * sinf(angle);
}
co[0] = x;
co[1] = y;
co[2] = 0.0f;
RE_texture_evaluate(mtex, co, thread, pool, false, false, &intensity, rgba);
}
CLAMP(intensity, 0.0f, 1.0f);
switch (br->mask_pressure) {
case BRUSH_MASK_PRESSURE_CUTOFF:
intensity = ((1.0f - intensity) < ups->size_pressure_value) ? 1.0f : 0.0f;
break;
case BRUSH_MASK_PRESSURE_RAMP:
intensity = ups->size_pressure_value + intensity * (1.0f - ups->size_pressure_value);
break;
default:
break;
}
return intensity;
}
/* Unified Size / Strength / Color */
/* XXX: be careful about setting size and unprojected radius
* because they depend on one another
* these functions do not set the other corresponding value
* this can lead to odd behavior if size and unprojected
* radius become inconsistent.
* the biggest problem is that it isn't possible to change
* unprojected radius because a view context is not
* available. my usual solution to this is to use the
* ratio of change of the size to change the unprojected
* radius. Not completely convinced that is correct.
* In any case, a better solution is needed to prevent
* inconsistency. */
const float *BKE_brush_color_get(const struct Scene *scene, const struct Brush *brush)
{
UnifiedPaintSettings *ups = &scene->toolsettings->unified_paint_settings;
return (ups->flag & UNIFIED_PAINT_COLOR) ? ups->rgb : brush->rgb;
}
const float *BKE_brush_secondary_color_get(const struct Scene *scene, const struct Brush *brush)
{
UnifiedPaintSettings *ups = &scene->toolsettings->unified_paint_settings;
return (ups->flag & UNIFIED_PAINT_COLOR) ? ups->secondary_rgb : brush->secondary_rgb;
}
void BKE_brush_color_set(struct Scene *scene, struct Brush *brush, const float color[3])
{
UnifiedPaintSettings *ups = &scene->toolsettings->unified_paint_settings;
if (ups->flag & UNIFIED_PAINT_COLOR) {
copy_v3_v3(ups->rgb, color);
}
else {
copy_v3_v3(brush->rgb, color);
}
}
void BKE_brush_size_set(Scene *scene, Brush *brush, int size)
{
UnifiedPaintSettings *ups = &scene->toolsettings->unified_paint_settings;
/* make sure range is sane */
CLAMP(size, 1, MAX_BRUSH_PIXEL_RADIUS);
if (ups->flag & UNIFIED_PAINT_SIZE) {
ups->size = size;
}
else {
brush->size = size;
}
}
int BKE_brush_size_get(const Scene *scene, const Brush *brush)
{
UnifiedPaintSettings *ups = &scene->toolsettings->unified_paint_settings;
int size = (ups->flag & UNIFIED_PAINT_SIZE) ? ups->size : brush->size;
return size;
}
bool BKE_brush_use_locked_size(const Scene *scene, const Brush *brush)
{
const short us_flag = scene->toolsettings->unified_paint_settings.flag;
return (us_flag & UNIFIED_PAINT_SIZE) ? (us_flag & UNIFIED_PAINT_BRUSH_LOCK_SIZE) :
(brush->flag & BRUSH_LOCK_SIZE);
}
bool BKE_brush_use_size_pressure(const Brush *brush)
{
return brush->flag & BRUSH_SIZE_PRESSURE;
}
bool BKE_brush_use_alpha_pressure(const Brush *brush)
{
return brush->flag & BRUSH_ALPHA_PRESSURE;
}
bool BKE_brush_sculpt_has_secondary_color(const Brush *brush)
{
return ELEM(brush->sculpt_tool,
SCULPT_TOOL_BLOB,
SCULPT_TOOL_DRAW,
SCULPT_TOOL_DRAW_SHARP,
SCULPT_TOOL_INFLATE,
SCULPT_TOOL_CLAY,
SCULPT_TOOL_CLAY_STRIPS,
SCULPT_TOOL_CLAY_THUMB,
SCULPT_TOOL_PINCH,
SCULPT_TOOL_CREASE,
SCULPT_TOOL_LAYER,
SCULPT_TOOL_FLATTEN,
SCULPT_TOOL_FILL,
SCULPT_TOOL_SCRAPE,
SCULPT_TOOL_MASK);
}
void BKE_brush_unprojected_radius_set(Scene *scene, Brush *brush, float unprojected_radius)
{
UnifiedPaintSettings *ups = &scene->toolsettings->unified_paint_settings;
if (ups->flag & UNIFIED_PAINT_SIZE) {
ups->unprojected_radius = unprojected_radius;
}
else {
brush->unprojected_radius = unprojected_radius;
}
}
float BKE_brush_unprojected_radius_get(const Scene *scene, const Brush *brush)
{
UnifiedPaintSettings *ups = &scene->toolsettings->unified_paint_settings;
return (ups->flag & UNIFIED_PAINT_SIZE) ? ups->unprojected_radius : brush->unprojected_radius;
}
void BKE_brush_alpha_set(Scene *scene, Brush *brush, float alpha)
{
UnifiedPaintSettings *ups = &scene->toolsettings->unified_paint_settings;
if (ups->flag & UNIFIED_PAINT_ALPHA) {
ups->alpha = alpha;
}
else {
brush->alpha = alpha;
}
}
float BKE_brush_alpha_get(const Scene *scene, const Brush *brush)
{
UnifiedPaintSettings *ups = &scene->toolsettings->unified_paint_settings;
return (ups->flag & UNIFIED_PAINT_ALPHA) ? ups->alpha : brush->alpha;
}
float BKE_brush_weight_get(const Scene *scene, const Brush *brush)
{
UnifiedPaintSettings *ups = &scene->toolsettings->unified_paint_settings;
return (ups->flag & UNIFIED_PAINT_WEIGHT) ? ups->weight : brush->weight;
}
void BKE_brush_weight_set(const Scene *scene, Brush *brush, float value)
{
UnifiedPaintSettings *ups = &scene->toolsettings->unified_paint_settings;
if (ups->flag & UNIFIED_PAINT_WEIGHT) {
ups->weight = value;
}
else {
brush->weight = value;
}
}
/* scale unprojected radius to reflect a change in the brush's 2D size */
void BKE_brush_scale_unprojected_radius(float *unprojected_radius,
int new_brush_size,
int old_brush_size)
{
float scale = new_brush_size;
/* avoid division by zero */
if (old_brush_size != 0) {
scale /= (float)old_brush_size;
}
(*unprojected_radius) *= scale;
}
/* scale brush size to reflect a change in the brush's unprojected radius */
void BKE_brush_scale_size(int *r_brush_size,
float new_unprojected_radius,
float old_unprojected_radius)
{
float scale = new_unprojected_radius;
/* avoid division by zero */
if (old_unprojected_radius != 0) {
scale /= new_unprojected_radius;
}
(*r_brush_size) = (int)((float)(*r_brush_size) * scale);
}
void BKE_brush_jitter_pos(const Scene *scene, Brush *brush, const float pos[2], float jitterpos[2])
{
float rand_pos[2];
float spread;
int diameter;
do {
rand_pos[0] = BLI_rng_get_float(brush_rng) - 0.5f;
rand_pos[1] = BLI_rng_get_float(brush_rng) - 0.5f;
} while (len_squared_v2(rand_pos) > square_f(0.5f));
if (brush->flag & BRUSH_ABSOLUTE_JITTER) {
diameter = 2 * brush->jitter_absolute;
spread = 1.0;
}
else {
diameter = 2 * BKE_brush_size_get(scene, brush);
spread = brush->jitter;
}
/* find random position within a circle of diameter 1 */
jitterpos[0] = pos[0] + 2 * rand_pos[0] * diameter * spread;
jitterpos[1] = pos[1] + 2 * rand_pos[1] * diameter * spread;
}
void BKE_brush_randomize_texture_coords(UnifiedPaintSettings *ups, bool mask)
{
/* we multiply with brush radius as an optimization for the brush
* texture sampling functions */
if (mask) {
ups->mask_tex_mouse[0] = BLI_rng_get_float(brush_rng) * ups->pixel_radius;
ups->mask_tex_mouse[1] = BLI_rng_get_float(brush_rng) * ups->pixel_radius;
}
else {
ups->tex_mouse[0] = BLI_rng_get_float(brush_rng) * ups->pixel_radius;
ups->tex_mouse[1] = BLI_rng_get_float(brush_rng) * ups->pixel_radius;
}
}
/* Uses the brush curve control to find a strength value */
float BKE_brush_curve_strength(const Brush *br, float p, const float len)
{
float strength = 1.0f;
if (p >= len) {
return 0;
}
p = p / len;
p = 1.0f - p;
switch (br->curve_preset) {
case BRUSH_CURVE_CUSTOM:
strength = BKE_curvemapping_evaluateF(br->curve, 0, 1.0f - p);
break;
case BRUSH_CURVE_SHARP:
strength = p * p;
break;
case BRUSH_CURVE_SMOOTH:
strength = 3.0f * p * p - 2.0f * p * p * p;
break;
case BRUSH_CURVE_SMOOTHER:
strength = pow3f(p) * (p * (p * 6.0f - 15.0f) + 10.0f);
break;
case BRUSH_CURVE_ROOT:
strength = sqrtf(p);
break;
case BRUSH_CURVE_LIN:
strength = p;
break;
case BRUSH_CURVE_CONSTANT:
strength = 1.0f;
break;
case BRUSH_CURVE_SPHERE:
strength = sqrtf(2 * p - p * p);
break;
case BRUSH_CURVE_POW4:
strength = p * p * p * p;
break;
case BRUSH_CURVE_INVSQUARE:
strength = p * (2.0f - p);
break;
}
return strength;
}
/* Uses the brush curve control to find a strength value between 0 and 1 */
float BKE_brush_curve_strength_clamped(Brush *br, float p, const float len)
{
float strength = BKE_brush_curve_strength(br, p, len);
CLAMP(strength, 0.0f, 1.0f);
return strength;
}
/* TODO: should probably be unified with BrushPainter stuff? */
unsigned int *BKE_brush_gen_texture_cache(Brush *br, int half_side, bool use_secondary)
{
unsigned int *texcache = NULL;
MTex *mtex = (use_secondary) ? &br->mask_mtex : &br->mtex;
float intensity;
float rgba_dummy[4];
int ix, iy;
int side = half_side * 2;
if (mtex->tex) {
float x, y, step = 2.0 / side, co[3];
texcache = MEM_callocN(sizeof(int) * side * side, "Brush texture cache");
/* do normalized canonical view coords for texture */
for (y = -1.0, iy = 0; iy < side; iy++, y += step) {
for (x = -1.0, ix = 0; ix < side; ix++, x += step) {
co[0] = x;
co[1] = y;
co[2] = 0.0f;
/* This is copied from displace modifier code */
/* TODO(sergey): brush are always caching with CM enabled for now. */
RE_texture_evaluate(mtex, co, 0, NULL, false, false, &intensity, rgba_dummy);
copy_v4_uchar((uchar *)&texcache[iy * side + ix], (char)(intensity * 255.0f));
}
}
}
return texcache;
}
/**** Radial Control ****/
struct ImBuf *BKE_brush_gen_radial_control_imbuf(Brush *br, bool secondary, bool display_gradient)
{
ImBuf *im = MEM_callocN(sizeof(ImBuf), "radial control texture");
unsigned int *texcache;
int side = 512;
int half = side / 2;
int i, j;
BKE_curvemapping_initialize(br->curve);
texcache = BKE_brush_gen_texture_cache(br, half, secondary);
im->rect_float = MEM_callocN(sizeof(float) * side * side, "radial control rect");
im->x = im->y = side;
if (display_gradient || texcache) {
for (i = 0; i < side; i++) {
for (j = 0; j < side; j++) {
float magn = sqrtf(pow2f(i - half) + pow2f(j - half));
im->rect_float[i * side + j] = BKE_brush_curve_strength_clamped(br, magn, half);
}
}
}
if (texcache) {
/* Modulate curve with texture */
for (i = 0; i < side; i++) {
for (j = 0; j < side; j++) {
const int col = texcache[i * side + j];
im->rect_float[i * side + j] *= (((char *)&col)[0] + ((char *)&col)[1] +
((char *)&col)[2]) /
3.0f / 255.0f;
}
}
MEM_freeN(texcache);
}
return im;
}